A common use of webcams in competitive exam context is: MCQ with Answer and Explanation

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A common use of webcams in competitive exam context is:

A. Printing admit cards

B. Online proctoring

C. Scanning answers

D. Typing questions

Answer: Option B

Solution (By JKSSB Mock Tests)

For remote examinations.

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Question #1

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The process of converting analog to digital in scanners is done by:

A. CU

B. DAC

C. ALU

D. ADC

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Correct Answer: Option D

Explanation:
Analog to Digital Converter digitizes scanned data.

This question belongs to: Computer Computer Hardware

Question #2

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What causes image retention in OLED monitors?

A. High brightness only

B. Low resolution

C. Static images over long periods

D. Wrong cable

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Correct Answer: Option C

Explanation:
Pixel wear issue mitigated by features.

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Question #3

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Ergonomic keyboards are designed to:

A. Reduce strain on wrists and hands

B. For gaming exclusively

C. Increase typing speed only

D. Reduce cost

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Correct Answer: Option A

Explanation:
They promote natural hand position.

This question belongs to: Computer Computer Hardware

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